计算两个日期之间的差异 [英] Calculating the difference between two dates
本文介绍了计算两个日期之间的差异的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我已经尝试过这样
<script type="text/javascript">
var date2=02/09/2009;
var date1=03/12/2009;
var diff = date1.getDate()-date2.getDate();
alert (diff);
</script>
但它不工作,是这个原因 getDate
只适用于 Date
?
but it's not working, is that reason getDate
will work only for Date
?
如何找到这两个日期之间的区别?我不能使用这个功能,因为我在salesforce CRM顶端页面添加了javascript?
How to find the difference between these two dates? Am I not able use this function, because I am adding javascript in salesforce CRM apex pages?
编辑1:因为这样也不工作 / p>
Edit 1 : infact this too not working
<script type="text/javascript">
var date2= new Date ("02/09/2009");
var date1= new Date ("04/09/2009");
var diff = date1.getDate()-date2.getDate();
alert (diff);
</script>
编辑2:它不工作...
<script type="text/javascript">
var date2= "02/09/2009";
var date1= "04/09/2009";
var diff2 = new Date(Date.parse("03/12/2009")-
Date.parse("02/09/2009")).toLocaleDateString();
// var new_date = new Date(1970,01,01);
// var diff3 = diff2.getDate();
alert(diff2);
// var new_date = new Date (1970, 01, 01); // var diff3 = diff2.getDate(); alert (diff2);
</script>
推荐答案
<script language="JavaScript">
<!--
function dstrToUTC(ds) {
var dsarr = ds.split("/");
var mm = parseInt(dsarr[0],10);
var dd = parseInt(dsarr[1],10);
var yy = parseInt(dsarr[2],10);
return Date.UTC(yy,mm-1,dd,0,0,0);
}
function datediff(ds1,ds2) {
var d1 = dstrToUTC(ds1);
var d2 = dstrToUTC(ds2);
var oneday = 86400000;
return (d2-d1) / oneday;
}
// test cases are below
var a; var b;
a = "01/09/1999";
b = "01/10/1999";
document.write("From "+a+" to "+b+" is "+datediff(a,b)+" day(s)<br>");
a = "01/12/1999";
b = "01/19/1999";
document.write("From "+a+" to "+b+" is "+datediff(a,b)+" day(s)<br>");
a = "01/19/1999";
b = "01/12/1999";
document.write("From "+a+" to "+b+" is "+datediff(a,b)+" day(s)<br>");
a = "01/03/1999";
b = "01/13/1999";
document.write("From "+a+" to "+b+" is "+datediff(a,b)+" day(s)<br>");
a = "04/30/1999";
b = "05/01/1999";
document.write("From "+a+" to "+b+" is "+datediff(a,b)+" day(s)<br>");
a = "05/30/1999";
b = "06/01/1999";
document.write("From "+a+" to "+b+" is "+datediff(a,b)+" day(s)<br>");
a = "02/28/1999";
b = "03/01/1999";
document.write("From "+a+" to "+b+" is "+datediff(a,b)+" day(s)<br>");
a = "02/28/2000";
b = "03/01/2000";
document.write("From "+a+" to "+b+" is "+datediff(a,b)+" day(s)<br>");
a = "01/01/1999";
b = "12/31/1999";
document.write("From "+a+" to "+b+" is "+datediff(a,b)+" day(s)<br>");
a = "01/01/2000";
b = "12/31/2000";
document.write("From "+a+" to "+b+" is "+datediff(a,b)+" day(s)<br>");
a = "12/15/1999";
b = "01/15/2001";
document.write("From "+a+" to "+b+" is "+datediff(a,b)+" day(s)<br>");
// -->
</script>
这篇关于计算两个日期之间的差异的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文